WO2020052684A1 - 一种安全气囊门铰链、包含其的用于汽车内部的饰件及饰件的制造方法 - Google Patents

一种安全气囊门铰链、包含其的用于汽车内部的饰件及饰件的制造方法 Download PDF

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Publication number
WO2020052684A1
WO2020052684A1 PCT/CN2019/105927 CN2019105927W WO2020052684A1 WO 2020052684 A1 WO2020052684 A1 WO 2020052684A1 CN 2019105927 W CN2019105927 W CN 2019105927W WO 2020052684 A1 WO2020052684 A1 WO 2020052684A1
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WO
WIPO (PCT)
Prior art keywords
airbag door
textile layer
airbag
door hinge
hinge
Prior art date
Application number
PCT/CN2019/105927
Other languages
English (en)
French (fr)
Inventor
侯剑锋
崔峰
戴欣烨
宦冬
Original Assignee
上海延锋金桥汽车饰件系统有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海延锋金桥汽车饰件系统有限公司 filed Critical 上海延锋金桥汽车饰件系统有限公司
Priority to EP19859386.5A priority Critical patent/EP3851337A4/en
Publication of WO2020052684A1 publication Critical patent/WO2020052684A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R2021/21537—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by hinges

Definitions

  • the present disclosure relates to the field of automobile accessories, and in particular, to a self-stretching hinge structure for an airbag door of a car and a trim for the interior of a car including the hinge.
  • the airbag door hinge is a component provided in the interior trim of the automobile to connect the airbag door and a bearing member surrounding the airbag door and to guide the airbag door when it is opened.
  • the triggering of the airbag causes the airbag door to open, thereby ejecting the airbag door.
  • the design of the airbag door should make the airbag door easy to open when the airbag is triggered, and in order not to cause possible harm to people in the airbag area, the airbag door should not be removed from the load-bearing component under any circumstances. Break away.
  • the airbag door hinge may be in the form of a fabric.
  • Chinese patent application document CN105358385A discloses an airbag cover hinge, which has a textile basic structure, in which a stopping yarn is integrated to prevent the yarn from having the same or lower breakage than the yarn of the basic structure It is strong and prevents the yarn from having a longer length relative to the textile basic structure.
  • the force acting on the airbag door hinge is related to the size of the airbag door.
  • the larger or heavier the airbag door the greater the force on the hinge.
  • a fabric-based airbag door hinge has a low elongation or insufficient tensile strength, and is prone to break because the hinge cannot withstand excessive shear tension during the deployment of the airbag door, and the airbag door flies out. This creates security risks.
  • the present disclosure relates to an airbag door hinge for connecting with an airbag door and a load bearing member surrounding the airbag door, wherein the airbag door hinge has a double-layered structure and has a first textile layer 1 and a first Two textile layers 2, the first textile layer 1 and the second textile layer 2 are connected by a plurality of connecting members 3.
  • the first textile layer 1 and the second textile layer 2 are each a continuous textile layer.
  • the second textile layer 2 is formed by folding the first textile layer 1 at an edge.
  • the airbag door hinge of the present disclosure wherein one of the first textile layer 1 and the second textile layer 2 is a continuous textile layer, and the other layer is a Textile layer.
  • the first textile layer 1 and the second textile layer 2 are each a textile layer including at least one spaced region.
  • the space region is defined by the connecting member 3.
  • the latitudinal distance L between two adjacent connecting members 3 in the zonal direction is 5-200 mm.
  • the latitudinal distance L between two adjacent connecting members 3 in the weft direction is 10-100 mm.
  • the latitudinal distance L between two adjacent connecting members 3 in the zonal direction is 20-50 mm.
  • the latitudinal distance L between two adjacent connecting members 3 in the weft direction is 5-70 mm.
  • the latitudinal distance L between two adjacent connecting members 3 in the zonal direction is 70-200 mm.
  • a gap between the first textile layer 1 and the second textile layer 2 is 2 mm or less.
  • the connecting member 3 is a wire, a coil, a glue, or a combination thereof.
  • the lateral density of the first textile layer 1 and the second textile layer 2 are 5-25 coils / 25mm respectively; and / or the longitudinal density is 5 -25 coils / 25mm.
  • the weight of the first textile layer 1 and the second textile layer 2 are 100-2000 gsm, respectively.
  • the first textile layer 1 and the second textile layer 2 are knitted fabrics, respectively.
  • the first textile layer 1 and the second textile layer 2 are weft knitted or warp knitted fabrics, respectively.
  • the first textile layer 1 and / or the second textile layer 2 each include a coil, and by embedding the coil included in the first textile layer 1 into the second textile Layer 2 and / or the coils contained in the second textile layer 2 are embedded in the first textile layer 1 for connection.
  • the first textile layer 1 and the second textile layer 2 have the same elongation and tensile strength.
  • the ratio L1 / D of the sum of the latitudinal distances L1 of the interval regions of the airbag door hinges of the present disclosure to the total zonal length D of the hinge is 0.8 or less, preferably 0.35-0.8.
  • a longitudinal distance L 'between two adjacent connecting members (3) in a warp direction is 150 mm or less, preferably 2 to 150 mm.
  • the first textile layer 1 and the second textile layer 2 include a fiber material.
  • the fiber material includes synthetic fibers, natural fibers, or a combination thereof, preferably polyethylene, polypropylene, regenerated cellulose fibers, polyamide, carbon fibers, poly Acrylonitrile, polyester, cellulose, cotton, sisal, abaca, kapok, ramie, flax, hemp, jute, animal hair, silk, or a combination thereof.
  • the coil is configured to stretch or stretch to provide stretching of the airbag door hinge when the airbag is deployed.
  • the airbag door hinge is connected to the airbag door and the bearing member by an insert injection molding process.
  • the present invention relates to a trim for an automobile interior, including: an airbag door, a load-bearing member surrounding the airbag door, and the airbag door hinge of the present invention, wherein the airbag door hinge For connection with an airbag door and the load-bearing component.
  • the bearing member includes: a skeleton and an airbag frame, the skeleton defines an opening for airbag deployment through the opening, the skeleton is integrally formed with the airbag frame, and the airbag door is configured to cover The opening, and the airbag door hinge is used to connect with the airbag door and the skeleton.
  • the bearing member includes a skeleton and an airbag frame
  • the skeleton defines an opening for the airbag to deploy through the opening
  • the skeleton is connected to the airbag frame
  • the airbag door is configured to cover the airbag door.
  • the opening is described, and the airbag door hinge is used to connect the airbag door and the airbag frame.
  • the present invention relates to a method of manufacturing a trim, the airbag door comprising an airbag door substrate, the method comprising: (1) providing the airbag door hinge; (2) the airbag The door hinge is placed in a mold forming the airbag frame, the skeleton, and the airbag door substrate; (3) a plastic melt is injected into the mold, and at least part of the airbag door hinge is covered with the plastic melt (4) After the plastic melt is cooled and taken out, the airbag frame, the skeleton, and the airbag door substrate are integrally formed, and the airbag door hinge is embedded in the skeleton and the airbag door substrate; 5) A weakening area is set between the airbag door substrate and the skeleton through a weakening process, so that the airbag door is flipped open to form the opening to facilitate deployment of the airbag from the opening.
  • the present invention relates to a method of manufacturing a trim, wherein an airbag door includes a reinforced door and an airbag door substrate, the method comprising: (1) providing the airbag door hinge; (2) placing the airbag door hinge; The airbag door hinge is placed in a mold that forms the airbag frame and the reinforced door; (3) a plastic melt is injected into the mold, at least part of the airbag door hinge is covered by the plastic melt; (4) ) After the plastic melt is cooled out, the airbag frame and the reinforced door are obtained, and at least part of the airbag door hinge is embedded in the airbag frame and the reinforced door to realize the reinforced door and the reinforced door.
  • connection of the airbag frame (5) providing the skeleton, and a weakening area is provided by a weakening process between the airbag door substrate and the skeleton, so that the airbag door is flipped open to form the opening to facilitate the airbag Unfolding from the opening; (6) connecting the airbag frame and the skeleton by welding and connecting the reinforcement door and the airbag door substrate.
  • the airbag door hinge used in the interior trim of the automobile of the present disclosure can form a fabric product with high elongation performance and good tensile strength, preventing the airbag door from being separated from the bearing member.
  • the high elongation of the fabric helps to reduce the tensile force of the fabric during the deployment of the airbag door, and reduces or avoids the risk of fabric breaking due to excessive shear tension.
  • the disclosure has simple manufacturing process for interior trim parts of automobiles, has good safety, and is suitable for industrialized production.
  • FIG. 1A is a schematic diagram of an automobile interior trim including an airbag door hinge according to an embodiment of the present disclosure.
  • FIG. 1B is a schematic diagram of an automobile interior trim including an airbag door hinge according to another embodiment of the present disclosure.
  • FIGS. 2H-2N are schematic top views corresponding to FIGS. 2A-2G, respectively, in which the directions indicated by arrows in FIG. In 2A-2G, the small squares on the right side of the first textile layer 1 and the second textile layer 2 represent the top view of the first textile layer 1 and the second textile layer 2, respectively.
  • 3A-3B are schematic top plan coil diagrams of a hinge according to an embodiment of the present disclosure, in which a direction indicated by an arrow is a stretching direction.
  • FIG. 4 is a schematic diagram and a loop diagram of a tissue form that can be used in the first textile layer 1 and the second textile layer 2 in the embodiment of the present disclosure.
  • 5A-5B are schematic top views of an embodiment of the present disclosure.
  • A23 foam layer of load-bearing component A24 skin layer of load-bearing component
  • S1 interval area S2, S3 continuous area
  • one or more refers to one, two, three, four, five, six or more.
  • two or more refers to two, three, four, five, six or more.
  • hinge is a hinge in the form of a fabric, in particular a hinge in the form of a mesh.
  • lateral density refers to the number of coils within a predetermined length (25 mm) along the direction of the coils.
  • the lateral density is calculated using methods well known in the art. For example, it can be calculated by the ratio of the specified length (25mm) to the pitch.
  • the horizontal direction can also be understood as the zonal direction.
  • longitudinal density is abbreviated as “longitudinal density”, and is the number of coils within a predetermined length (25mm) along the longitudinal direction of the coil.
  • the longitudinal density is calculated using methods well known in the art. For example, it can be calculated by the ratio of the specified length (25mm) to the ring height. In this context, longitudinal is also understood as warp.
  • gram weight is the dry weight in grams per square meter, and the unit is usually expressed in gsm or g / m 2 .
  • tissue of a fabric is the way in which the basic structural units (loops, floats, loops) that make up the fabric and additional yarns or fiber assemblies are configured, arranged, combined, and joined.
  • the term "extensibility” refers to the elongation characteristic of a fabric when stretched by an external force, also known as extensibility. It is usually measured using ISO13934. Elongation is often used as an indicator of ductility.
  • the first textile layer and the second textile layer of the present disclosure have the same or different elongations.
  • the elongation of the hinge of the present disclosure is about 20-200%, such as about 50%, 80%, 100%, 120%.
  • the term "tensile strength" refers to the maximum external force that a fabric can withstand when stretched to break, and the unit is N. Measurements are usually made using methods well known in the art. For example, ISO13934.
  • the first textile layer and the second textile layer of the present disclosure have the same or different tensile strengths.
  • the tensile strength of the hinge of the present disclosure is generally tested using a specimen having an effective width (width in the weft direction) of 5 cm, and the direction of tension is the warp direction of the hinge.
  • the tensile strength is about 800-4000N, for example, about 800N, 1200N, 1500N, 2000N, 4000N.
  • the tensile deformation of the hinge can be achieved, for example, by the tensile deformation of the coils contained in the first textile layer and / or the second textile layer.
  • the term “insert injection molding process” refers to the injection of resin into a mold after inserting a pre-prepared insert of a different material (such as a hinge of the present disclosure), and the molten resin material is bonded and solidified with the insert to make an integrated product. Forming method.
  • the present disclosure provides an airbag door hinge for connecting with an airbag door and a load bearing member surrounding the airbag door.
  • the present disclosure also provides a trim for an interior of an automobile, including: an airbag door, a load-bearing member surrounding the airbag door, and an airbag door hinge, wherein the airbag door hinge is used for an airbag door and Connection of bearing parts.
  • the bearing member may also be referred to as a receiving member.
  • FIG. 1A a schematic view of an automobile interior trim including an airbag door hinge of the present disclosure, showing the position of one embodiment of the hinge for an airbag door.
  • a trim for an automobile interior includes an airbag door A1 (a component shown in a thick dashed line), a load bearing member A2 surrounding the airbag door A1, and an airbag door Hinge C1, the fabric.
  • the hinge C1 is used to connect the airbag door A1 and the bearing member A2.
  • the connection can be made, for example, using an insert injection molding process.
  • the bearing member A2 includes a skeleton A21 and an airbag frame A22.
  • the skeleton A21 defines an opening O for the airbag G to deploy through the opening O.
  • the airbag frame A22 is integrally formed with the frame A21.
  • the bearing member A2 further includes a bearing member foam layer A23 and / or a bearing member skin layer A24.
  • the bearing member foam layer A23 and the bearing member skin layer A24 are sequentially disposed on the side of the skeleton A21 away from the airbag frame A22.
  • the bearing member foam layer A23 and the bearing member skin layer A24 may have the same or different material compositions.
  • the airbag door A1 is configured to cover the opening O.
  • the airbag door A1 includes an airbag door substrate A12 arranged in order from bottom to top, and optionally an airbag door foam layer A13 and an airbag door skin layer A14.
  • the airbag door hinge C1 is used to connect with the airbag door substrate A12 and the skeleton A21.
  • the airbag door hinge C1 includes a fixed section C10, C13 and a hinge section C11.
  • the fixed sections C10 and C13 are respectively fixed in the skeleton A21 and the airbag door substrate A12.
  • the hinge segment C11 is also fixed in the skeleton A21 and the airbag door substrate A12.
  • the airbag door foam layer A13 and the airbag door skin layer A14 may have the same or different material compositions.
  • the bearing member foam layer A23 and the airbag door foam layer A13 have the same material composition.
  • the load-bearing component skin layer A24 and the airbag door skin layer A14 have the same material composition.
  • the skeleton A21 and the airbag door substrate A12 have the same material composition. In another embodiment, the skeleton A21 and the airbag door substrate A12 are integrally formed.
  • the frame A21 also includes a weakened area W, which is located on the side of the opening covered by the airbag door away from the hinge C1 and the frame A21, so that the airbag door can be easily opened and the airbag can be removed from the airbag frame. Deploy towards the airbag door.
  • the direction indicated by the dotted arrow in FIG. 1A is the direction in which the airbag door is opened.
  • a trim for an automobile interior includes: an airbag door A1 (a component shown in a thick dotted line), a load-bearing member A2 surrounding the airbag door A1, and an airbag Door hinge C1, that is, fabric.
  • the hinge C1 is used to connect the airbag door A1 and the bearing member A2. This connection can be made, for example, using an insert injection molding process.
  • the bearing member A2 includes a skeleton A21 and an airbag frame A22.
  • the skeleton A21 defines an opening O for the airbag G to deploy through the opening O.
  • the skeleton A21 is connected to the airbag frame A22.
  • the connection method includes, but is not limited to, welding, bonding, riveting, threaded connection, and hook connection, preferably welding.
  • the bearing member A2 further includes a bearing member foamed layer A23 and / or a bearing member skin layer A24.
  • the bearing member foam layer A23 and the bearing member skin layer A24 are sequentially disposed on the side of the skeleton A21 away from the airbag frame A22.
  • the bearing member foam layer A23 and the bearing member skin layer A24 may have the same or different material compositions.
  • the airbag door A1 is configured to cover the opening.
  • the airbag door A1 includes a reinforced door A11, an airbag door substrate A12, and an airbag door foam layer A13 and an airbag door skin layer A14, which are arranged in order from bottom to top.
  • the connection method of the reinforced door A11 and the airbag door substrate A12 includes, but is not limited to, welding, bonding, riveting, screw connection, and hook connection, and preferably welding.
  • the airbag door foam layer A13 and the airbag door skin layer A14 may have the same or different material compositions.
  • the bearing member foam layer A23 and the airbag door foam layer A13 have the same material composition.
  • the load-bearing component skin layer A24 and the airbag door skin layer A14 have the same material composition.
  • the skeleton A21 and the airbag door substrate A12 have the same material composition. In another embodiment, the skeleton A21 and the airbag door substrate A12 are integrally formed.
  • the airbag door hinge C1 is used to connect the reinforcement door A11 and the airbag frame A22 of the airbag door.
  • the airbag door hinge C1 includes a fixed section C12, C13 and a hinge section C11.
  • the fixed sections C12 and C13 are respectively fixed in the airbag frame A22 and the reinforcement door A11 in the airbag door A1.
  • the hinge segment C11 is in a relaxed state.
  • the frame A21 further includes a weakened area W, which is provided on both sides of the opening covered by the airbag door, so that the airbag door can be easily opened, and the airbag can be deployed from the airbag frame toward the airbag door.
  • the direction indicated by the arrow in FIG. 1B is the direction in which the airbag door is opened.
  • a method of manufacturing an ornament of the present disclosure includes:
  • a weakening area W is provided between the airbag door substrate A12 and the frame A21 through a weakening process, so that the airbag door A1 is opened and opened to form an opening O, so that the airbag G is deployed from the opening O.
  • the mold for forming the airbag frame A22, the frame A21, and the airbag door substrate A12 in the step (2) is an integral mold.
  • step (2) the airbag door hinge C1 is placed in a part of the mold skeleton A21 and the airbag door substrate A12 in the mold.
  • the plastic melt described in step (3) is a plastic melt commonly used in the art, such as polyvinyl chloride, polypropylene, polyacrylonitrile-butadiene-styrene, polyester, and polyurethane.
  • the amount of plastic melt should be such that at least one side of the airbag door hinge C1 can be embedded in the framework A21 and the airbag door substrate A12 or a certain depth into the framework A21 and the airbag door substrate A12, so that it can be used by the framework A21 and The airbag door substrate A12 is fixed.
  • step (4) the airbag frame A22, the skeleton A21, and the airbag door substrate A12 are integrally formed.
  • the airbag door hinge C1 is embedded in the skeleton A21 and the airbag door substrate A12.
  • the foamed layer and the skin layer can be optionally compounded on the integrally formed part of the skeleton A21 and the airbag door substrate A12 away from the airbag frame A22 to form a foamed layer of the bearing member A23, the skin layer A24 of the load-bearing component, the foam layer A13 of the airbag door, and the skin layer A14 of the airbag door.
  • the weakening area W in step (5) should be set so that the interface between the airbag door substrate A12 and the skeleton A21 has weaker mechanical strength than the airbag door substrate A12 and other parts of the skeleton A21, so that the airbag door A1 can Open and flip under desired conditions.
  • the weakening process may be a process commonly used in the field, such as laser weakening, hot knife weakening, and cold knife weakening.
  • the depth of the weakened area can optionally extend from the skeleton A21 to the foam layer A23, but should not extend to the skin layer A24.
  • a method of manufacturing a trim piece of the present disclosure includes:
  • a skeleton A21 is provided, and a weakening area W is provided between the airbag door substrate A12 and the skeleton A21 through a weakening process, so that the airbag door A1 is flipped open to form an opening O to facilitate the deployment of the airbag G from the opening O;
  • step (2) two opposite fixed sections C12 and C13 of the airbag door hinge C1 are respectively placed in the mold to form the airbag frame A22 and the reinforced door A11.
  • the plastic melt in step (3) is as described above.
  • the amount of plastic melt should be such that at least one side of the airbag door hinge C1 can be embedded in the airbag frame A22 and the reinforced door A11 or a certain depth into the airbag frame A22 and the reinforced door A11, so that it can be reinforced by the airbag frame A22 and reinforced Door A11 is fixed.
  • step (4) two opposite fixed sections C12 and C13 of the hinge C1 are respectively embedded in the airbag frame A22 and the reinforcing door A11, so that the reinforced door A11 and the airbag frame A22 are connected by the hinge section C11 of the hinge C1.
  • step (5) An integrally formed part of the skeleton A21 and the airbag door substrate A12 is provided.
  • the foamed layer and the skin layer can be optionally compounded on the integrally formed part of the skeleton A21 and the airbag door substrate A12 away from the airbag frame A22 to form a foamed layer of the bearing member.
  • the weakening area W in step (5) should be set so that the interface between the airbag door substrate A12 and the skeleton A21 has weaker mechanical strength than the airbag door substrate A12 and other parts of the skeleton A21, so that the airbag door A1 can Flip or open under desired conditions.
  • the weakening process may be a process commonly used in the field, such as laser weakening, hot knife weakening, and cold knife weakening.
  • the depth of the weakened area can optionally extend from the skeleton A21 to the foam layer A23, but should not extend to the skin layer A24.
  • FIG. 2A a schematic side view of a hinge according to an embodiment of the present disclosure.
  • the hinge of the airbag door of the present disclosure has a double-layer structure, and has a first textile layer 1 and a second textile layer 2.
  • the first textile layer 1 and the second textile layer 2 are arranged in parallel.
  • the first textile layer 1 and the second textile layer 2 are connected by a plurality of connecting members 3.
  • a gap h between the first textile layer 1 and the second textile layer 2 is about 2 mm or less.
  • the gap h between the first textile layer 1 and the second textile layer 2 is the distance between the lower side of the first textile layer 1 and the upper side of the second textile layer 2.
  • the gap between the lower side of the first textile layer 1 and the upper side of the second textile layer 2 at the connection point of the connecting member 3 is about 0 mm, that is, here the lower side of the first textile layer 1 and the second textile layer.
  • the upper side of layer 2 is completely fitted without gaps.
  • the distance between the lower side of the first textile layer 1 and the upper side of the second textile layer 2 at the place where there is no connection member 3 is about 2 mm or less. It should be noted that, because the textile layer is soft, the gap where the connection member 3 is absent is not a constant value, and varies with the distance from the connection member 3, but all are within the range of 2 mm or less.
  • the identification of the gap h between the first textile layer 1 and the second textile layer 2 in FIG. 2A is merely exemplary.
  • the distance between the lower side of the first textile layer 1 and the upper side of the second textile layer 2 without the connection member 3 may also be about 0 mm. That is, the lower side of the first textile layer 1 and the second textile layer 2 are completely attached, and there is no gap in the middle, as shown in FIG. 2B.
  • the thicknesses of the first textile layer 1 and the second textile layer 2 are about 0.8 mm, respectively.
  • the thickness of the hinge in FIG. 2A is about 1.6 mm at the connecting member 3 and about 3.6 mm or less at the connecting member 3.
  • the thicknesses of the first textile layer 1 and the second textile layer 2 are about 0.8 mm, respectively.
  • the first textile layer 1 and the second textile layer 2 are completely fitted together, and the thickness of the hinge is about 1.6 mm.
  • a slightly thicker textile layer is advantageous for better elongation, but the feasibility of the injection molding process must also be considered.
  • the thickness of the first textile layer 1 and the second textile layer 2 are generally about 0.5-1 mm, respectively.
  • the thickness of the hinge is usually about 1-4 mm.
  • the distance between two adjacent connecting members 3 in the zonal direction is the zonal distance L.
  • the proper weft distance L between the connecting members 3 can bring good tensile strength and elongation to the fabric. Excessive weft distance L is not conducive to the improvement of the overall strength of the fabric. An excessively small weft distance L may affect the elongation of the entire fabric.
  • the latitudinal distance L between two adjacent connecting members 3 in the weft direction for the connection of the first textile layer 1 and the second textile layer 2 is about 5-200 mm, such as about 10-100 mm, about 20-50 mm , About 20-35mm, about 5-70mm, about 70-200mm.
  • the first textile layer 1 and the second textile layer 2 are each continuous textile layers.
  • the connecting members 3 may be substantially uniformly distributed between the first textile layer and the second textile layer, that is, the latitudinal distance L between adjacent connecting members 3 in the weft direction may be substantially the same.
  • the latitudinal distance L between two adjacent connecting members 3 in the weft direction for the connection of the first textile layer 1 and the second textile layer 2 is about 5-200 mm, preferably about 10-100 mm, and more preferably about 20-50 mm, even more preferably about 20-35 mm, such as about 5, 30 mm.
  • the zonal distance L between the adjacent connecting members 3 in the zonal direction may also be different, that is, the zonal distance L between the adjacent connecting members 3 in the zonal direction is different, but the zonal distance L changes The range should be within the zonal spacing described above.
  • one of the first textile layer 1 and the second textile layer 2 in the airbag door hinge is a continuous textile layer
  • the other layer is a textile layer including at least one spaced region.
  • the spaced region is where the corresponding textile layer is missing. That is, the first textile layer 1 or the second textile layer 2 may be intermittent between the two connecting members 3 adjacent in the weft direction, and only the first textile layer 1 or the first textile layer exists in the same space in the weft direction at the interval area.
  • Two textile layers 2. The separation area is defined by the connecting member 3.
  • the length of each interval region in the weft direction is the distance between two adjacent connecting members in the weft direction, that is, the weft distance L.
  • the ratio L1 / D of the sum L1 of the latitudinal distances L in the interval region to the total latitudinal length D of the hinge is about 0.8 or less.
  • the total latitudinal length D of the hinge is not particularly limited, and is usually about 160-250 mm.
  • the hinge includes a plurality of spaced regions.
  • the total number of spaced regions is not particularly limited.
  • the ratio L1 / D of the sum of the latitudinal distances L1 of the spaced regions to the total latitudinal length D of the hinge is about 0.75 or less, for example, about 0.43.
  • the zonal spacing of each interval region in FIG. 2C may be the same or different.
  • the continuous region is the corresponding textile layer in which the region is continuous. That is, the first textile layer 1 and the second textile layer 2 are simultaneously provided in the same space in the weft direction at successive regions. In FIG.
  • the zonal distance L between the two adjacent connecting members 3 adjacent to each other in the zonal direction may be the same or different, and the zonal distance L in each interval region may be the same or different from the zonal distance L in the continuous regions.
  • all are in the range of the latitudinal distance L described above, preferably in the range of about 5 to 70 mm, more preferably about 20 to 50 mm, such as about 25, 30, and 40 mm.
  • the zonal spacing L of each interval region, the zonal spacing L of the continuous regions, and the number of interval regions can be adjusted.
  • the hinge may include a space region, that is, it includes only two connecting members 3. Only the space region S1 of the first textile layer 1 or the second textile layer 2 is provided at an intermediate position in the weft direction of the hinge.
  • the latitudinal distance L between the connecting members 3 is preferably about 70-200 mm, for example, about 70, 100, 130, 160, 180, 200 mm. Since there are only two connecting members 3, the latitudinal distance L is the sum L1 of the zonal distances of the interval regions.
  • the ratio L1 / D of the sum of the latitudinal pitches L1 of the interval region to the total latitudinal length D of the hinge is about 0.8 or less, preferably about 0.35-0.8, and for example about 0.35, 0.45, 0.6, 0.7, 0.8.
  • the second textile layer 2 of the airbag door hinge is formed by folding the first textile layer 1 at an edge.
  • the hinge includes a spaced region, which is different from the scheme of FIG. 2D.
  • the second textile layer 2 is the first textile layer 1
  • the two opposite edges are formed by folding 180 degrees in the direction of the middle of the textile layer. That is, the first textile layer 1 and the second textile layer 2 are the same fabric.
  • the latitudinal distance L is the sum L1 of the zonal distances of the interval regions.
  • the ratio L1 / D of the sum of the latitudinal pitches L1 of the interval region to the total latitudinal length D of the hinge is about 0.8 or less, preferably about 0.35-0.8, and for example, about 0.35, 0.45, 0.6, 0.7, and 0.8.
  • the first textile layer 1 and the second textile layer 2 in the airbag door hinge are each a textile layer including at least one spaced region.
  • the first textile layer 1 and the second textile layer 2 each include at least one textile layer in a spaced region, but the arrangement of the first textile layer 1 and the second textile layer 2 makes the entire hinge be Continuous, that is, the first textile layer 1 or the second textile layer 2 in the same space in the weft direction at the interval area.
  • the arrangement of the first textile layer 1 and the second textile layer 2 is such that the first textile layer 1 and the second textile layer 2 may be continuous areas at the same time in the same space in the weft direction, or one of them may have a spaced area.
  • the zonal distance L between the two connecting members 3 adjacent to each other in the zonal direction may be the same or different, and the zonal distance L of each interval region may be the same or different from the zonal distance L of each continuous region.
  • the latitudinal distance L is about 5-200 mm, preferably about 5-70 mm, more preferably about 20-50 mm, such as about 25, 30, and 40 mm. According to the actual elongation and tensile strength requirements, the zonal spacing L of each interval region, the zonal spacing L of the continuous regions, and the number of interval regions can be adjusted.
  • the arrangement of the first textile layer 1 and the second textile layer 2 in the entire hinge can also make the first textile layer 1 and the second textile layer 2 not continuous in the same space in the weft direction.
  • the arrangement of the first textile layer 1 and the second textile layer 2 is such that the entire area of the hinge is the space between the first textile layer 1 or the space between the second textile layer 2 in the same space.
  • a continuous area of the first textile layer 1 or a continuous area of the second textile layer 2 but not continuous areas at the same time.
  • such an arrangement should make the entire hinge continuous, that is, the first textile layer 1 and the second textile layer 2 are not at the same time spaced areas in the same space in the middle of the hinge.
  • the latitudinal distance L of each interval region in FIG. 2G may be the same or different.
  • the latitudinal distance L is about 5-200 mm, preferably about 5-70 mm, more preferably about 20-50 mm, such as about 25, 30, and 40 mm. According to the actual elongation and tensile strength requirements, the zonal spacing L of each interval region, the zonal spacing L of the continuous regions, and the number of interval regions can be adjusted.
  • connection member 3 depends on the actual requirements for elongation and tensile strength, and is not particularly limited.
  • the connection form of the connection member 3 is not particularly limited, and may be in the form of a coil, a wire, an adhesive, or a combination thereof.
  • the material of the coil or wire includes, but is not limited to, fiber, metal, and the like. When fibers are used as materials, the fibers are listed below.
  • FIG. 3A a top view coil diagram of a hinge according to an embodiment of the present disclosure.
  • the area shown in the figure does not include spaced areas.
  • the first textile layer 1 (black portion) and the second textile layer 2 (white portion) are configured as a knitted fabric.
  • the fabric of the first textile layer 1 and the second textile layer 2 may also be a woven fabric or a combination thereof.
  • the fabrics of the first textile layer 1 and the second textile layer 2 in FIG. 3A are specifically weft knitted fabrics. But it can also be a warp knitted fabric.
  • the shape of the fabric including, but not limited to, basic, variable, single-sided, double-sided, and composite, such as weft weave, rib weave, tuck weave, loop weave, leno, and Tim Yarn organization, floating yarn addition organization, weft insertion organization, organization as shown in FIG. 4 or a combination thereof, etc., preferably weft flat organization, rib organization, loop organization, transfer organization, leno organization, yarn adding organization, floating organization
  • the yarn adding structure the structure shown in FIG. 4, or a combination thereof.
  • the first textile layer 1 and the second textile layer 2 both use the same weave structure, which is a weft flat structure.
  • the organizational forms of the first textile layer 1 and the second textile layer 2 may be different.
  • Each of the first textile layer 1 and the second textile layer 2 can also use a combination of one or more tissue shapes.
  • the mesh patterns of the first textile layer 1 and the second textile layer 2 are the same.
  • the mesh patterns of the first textile layer and the second textile layer may be different.
  • the weaving method of the first textile layer 1 and the second textile layer 2 is a weaving method generally used in the art.
  • FIG. 3A a flat knitting machine is used.
  • first textile layer 1 and the second textile layer 2 comprise a fibrous material.
  • the material used to weave the first textile layer 1 and the second textile layer 2 is a fiber.
  • the first textile layer 1 and the second textile layer 2 each consist of at least one fiber unit. The fiber unit is woven by winding, crossing, and looping to form a textile layer.
  • the fibers are fibers commonly used in the art for textiles, including but not limited to synthetic fibers such as polyethylene, polypropylene, regenerated cellulose fibers, polyamide, carbon fibers, polyacrylonitrile, polyesters such as aramid, polyester , Nylon, acrylic, polypropylene, vinylon, chloroprene, etc., natural fibers such as cellulose, cotton, sisal, abaca, kapok, ramie, flax, hemp, jute, animal hair, silk, etc.
  • One type of fiber can be used, or a combination of two or more types of fibers can be used.
  • the material selection of the first textile layer 1 and the second textile layer 2 should be such that each of them has a certain tensile strength and elongation.
  • the fiber types of the first textile layer 1 and the second textile layer 2 may be the same or different. However, the mechanical properties of the two layers, such as elongation and tensile strength, should generally not be significantly different. In the embodiment of FIG. 3A, the fiber types of the first textile layer 1 and the second textile layer 2 are the same. In the embodiment of FIG. 3A, the fibers used in the first textile layer 1 and the second textile layer 2 are aramid fibers.
  • the first textile layer 1 and the second textile layer 2 should have a certain range of lateral and longitudinal densities, and a certain weight, so that they have excellent elongation and tensile strength, so that the airbag door does not Will detach from the load-bearing part.
  • the transverse density of the first textile layer 1 and the second textile layer 2 is generally about 5-25 coils / 25mm, preferably about 5-10 coils / 25mm, for example, about 7,13 coils / 25mm.
  • the longitudinal density of the first textile layer 1 and the second textile layer 2 is generally about 5-25 coils / 25mm, preferably about 9-15 coils / 25mm, for example, about 12 coils / 25mm.
  • the basis weight of the first textile layer 1 and the second textile layer 2 is about 100-2000 gsm, preferably about 400-800 gsm, for example, about 560 gsm.
  • the first textile layer 1 and the second textile layer 2 may have substantially the same or different transverse density, longitudinal density, and basis weight. Different regions in the respective textile layers of the first textile layer 1 and the second textile layer 2 may also have different lateral density, longitudinal density, and gram weight, but such differences vary within the range described above.
  • the connection member 3 is a coil connection method.
  • the first textile layer 1 is dominated by black stitches
  • the second textile layer 2 is dominated by white stitches.
  • the first textile layer 1 and the second textile layer 2 each include a coil.
  • the connection mode 3 (1) is that the white coil a included in the second textile layer 2 is embedded in the first textile layer 1.
  • the connection method 3 (2) is that the black coil b included in the first textile layer 1 is embedded in the second textile layer 2.
  • the first textile layer 1 and the second textile layer 2 are knitted at the same time.
  • the loop of the first textile layer 1 jumps to the second textile layer 2 by the knitting needle, and the loop of the second textile layer 2 jumps by the knitting needle
  • the coils a and b can be embedded in the opposite textile layers, that is, the first textile layer 1 and the second textile layer 2.
  • the black coil b which should be in the connection mode 3 (1) position in the first textile layer 1 is embedded in the white coil in the second textile layer 2 which should be in the connection mode 3 (2) position.
  • the embedding method is winding, that is, the coil a contained in the second textile layer 2 is wound around the coil contained in the first textile layer 1, and the coil b contained in the first textile layer 1 is wound around the second textile layer. Layer 2 in the coil. When the airbag is deployed, the coil is stretched or stretched, helping to provide stretching of the airbag door hinge.
  • connection may also be implemented in other ways.
  • the connection is achieved by embedding the coils contained in the first textile layer 1 into the second textile layer 2 and winding them with the coils contained in the second textile layer 2.
  • the connection is achieved by embedding the coils contained in the second textile layer 2 into the first textile layer 1 and winding them with the coils contained in the first textile layer 1.
  • the first textile layer is connected to the second textile layer by using a coil separate from the first textile layer and the second textile layer.
  • the coil is connected to the textile layer by embedding, winding, or other means known in the art.
  • first textile layer and the second textile layer are connected by a plurality of wires, such as a connecting wire, which may be connected to the first textile layer and the second textile layer in any manner known in the art,
  • the connecting line may be at any angle to the first and / or second textile layer.
  • the latitudinal distance L is the distance in the same horizontal direction from the side of the first stitch of the same textile layer in the weft direction to the same side of the adjacent second stitch of the same textile layer.
  • the latitudinal distance L may be about 5-200 mm, such as about 10-100 mm, about 20-50 mm, about 20-35 mm, about 5-70 mm, about 70-200 mm, such as about 5, 30, 70, 160, 200mm.
  • the first textile layer 1 and the second textile layer 2 have substantially uniform mechanical properties such as elongation and tensile strength.
  • the direction of stretching and extending is the longitudinal or warp direction of the loops in the textile layer.
  • the elongation of the hinge of the present disclosure is about 20-200%, such as about 100%, 50%, 80%, 120%.
  • the tensile strength of the hinge of the present disclosure is about 800-4000N, for example, about 800N, 1500N, 2000N, 4000N.
  • the first textile layer 1 and the second textile layer 2 have different mechanical properties such as elongation and tensile strength, but such mechanical properties are all described herein. Within range.
  • different regions inside the first textile layer 1 and the second textile layer 2 have substantially uniform mechanical properties such as elongation and tensile strength. In another embodiment, different regions inside the first textile layer 1 and the second textile layer 2 have different mechanical properties such as elongation and tensile strength, but all are within the range described herein.
  • the insertion or replacement of the coils used as the connection member 3 in the first textile layer 1 and the second textile layer 2 is performed in a column.
  • the first and second columns in the first textile layer 1 are embedded or replaced by the coils in the second textile layer 2.
  • Columns I 'and II' in the second textile layer 2 are embedded or replaced by the coils in the first textile layer 1.
  • the coils used as the connecting members 3 in the first textile layer 1 and the second textile layer 2 are embedded or replaced in a column.
  • other connecting members other than the coils may be used for connection.
  • Glue or wire such as the form of connecting wire, or a combination of connection forms using one or more of glue, wire, and coil simultaneously.
  • the first textile layer 1 is dominated by black stitches
  • the second textile layer 2 is dominated by white stitches.
  • the insertion or replacement of the coils of the connecting parts 3 of the two textile layers 2 is performed on a point-by-point basis.
  • the range of the latitudinal pitch L of the coil used as the connection member 3 in FIG. 3B conforms to the range of L herein.
  • the meridional pitch L ' is the meridional pitch between two adjacent connecting members in the meridional direction.
  • the longitudinal distance L ' may be about 150 mm or less, preferably about 2 to 150 mm, such as 3 to 50 mm, 4 to 20 mm. For example, it is about 4, 10, 30, 80, 100, 120 mm.
  • the number of coils is used for the embedding or replacement.
  • the meridional distance L ' is less than 2mm, it can generally be understood that each coil in the column is a coil in the opposite layer. Embedding or replacing, for example, the scheme of FIG. 3A.
  • FIG. 3A and FIG. 3B are exemplary, and do not represent the number of coils actually existing between the connecting members 3.
  • Examples 1-7 are examples of airbag door hinges, which all use aramid fibers as a textile material, and the weave structure of the fabric is a weft flat structure, which is knitted using a flat knitting machine.
  • Examples 1-6 have a connecting member 3 such as The coil connection method shown in FIG. 3A.
  • the seventh embodiment has a connection member 3 which is a coil connection method as shown in FIG. 3B.
  • the first textile layer 1 and the second textile layer 2 each have a horizontal density of 13 coils / 25mm, a longitudinal density of 12 coils / 25mm, a gram weight of 560gsm, and are evenly distributed in the respective textile layers.
  • the gap h between the first textile layer 1 and the second textile layer 2 is 0 mm. That is, the first textile layer 1 and the second textile layer 2 are completely bonded.
  • the side and top views of the hinge are shown in Figures 2B and 2I, respectively.
  • the first textile layer 1 and the second textile layer 2 of the hinge are each a continuous textile layer.
  • the latitudinal distance L between two adjacent connecting members 3 in the weft direction of the connecting member 3 for the first textile layer 1 and the second textile layer 2 is about 30 mm.
  • the elongation of the first textile layer 1 and the second textile layer 2 are the same, being 120%, respectively.
  • the elongation of the hinge is 100%.
  • the tensile strength of the hinge is 2000N.
  • the side and top views of the hinge are shown in Figures 2B and 2I, respectively.
  • the first textile layer 1 and the second textile layer 2 of the hinge are each a continuous textile layer.
  • the latitudinal distance L between two adjacent connecting members 3 in the weft direction of the connecting member 3 for the first textile layer 1 and the second textile layer 2 is about 5 mm.
  • the first textile layer 1 and the second textile layer 2 have the same elongation.
  • the elongation of the hinge is 50%.
  • the tensile strength of the hinge is 4000N.
  • the side and top views of the hinge are shown in Figures 2C and 5A, respectively.
  • the first textile layer 1 in the hinge is a continuous textile layer
  • the second textile layer 2 is a textile layer including three spaced regions.
  • the connecting member 3 for the first textile layer 1 and the second textile layer 2 has a latitudinal distance L between the two adjacent connecting members 3 in the weft direction of 30 mm, a total weft length D of the hinge of 210 mm, and a gap area
  • the sum of the latitudinal distances L1 is 90 mm and L1 / D is 0.43.
  • the elongation of the hinge is 100%.
  • the tensile strength of the hinge is 1200N.
  • the side and top views of the hinge are shown in Figures 2D and 5B, respectively.
  • the first textile layer 1 in the hinge is a continuous textile layer
  • the second textile layer 2 is a textile layer including one spaced region.
  • the latitudinal distance L between two adjacent connecting members 3 or the sum of the latitudinal distances L1 of the spacing area is 160 mm.
  • the elongation of the hinge is 80%.
  • the tensile strength of the hinge is 800N.
  • the side and top views of the hinge are shown in Figures 2D and 5B, respectively.
  • the first textile layer 1 in the hinge is a continuous textile layer
  • the second textile layer 2 is a textile layer including one spaced region.
  • the zonal distance L or the sum L1 of the zonal distance L between the two adjacent connecting members 3 in the weft direction between the two adjacent connecting members 3 in the weft direction is 70mm
  • l2 l3
  • the total latitudinal length D of the hinge is 200mm
  • L1 / D is 0.35.
  • the elongation of the hinge is 100%.
  • the tensile strength of the hinge is 1500N.
  • the side and top views of the hinge are shown in Figures 2D and 5B, respectively.
  • the first textile layer 1 in the hinge is a continuous textile layer
  • the second textile layer 2 is a textile layer including one spaced region.
  • the zonal distance L or the sum L1 of the zonal distance L between two adjacent connection members 3 in the weft direction of the connecting member 3 for the first textile layer 1 and the second textile layer 2 is 200 mm
  • l2 l3
  • the total latitudinal length D of the hinge is 250mm
  • L1 / D is 0.8.
  • the elongation of the hinge is 80%.
  • the tensile strength of the hinge is 800N.
  • the side and top views of the hinge are shown in Figures 2B and 2I, respectively.
  • the first textile layer 1 and the second textile layer 2 of the hinge are each a continuous textile layer.
  • the latitudinal distance L between two adjacent connecting members 3 in the weft direction of the connecting member 3 for the first textile layer 1 and the second textile layer 2 is about 30 mm.
  • the longitudinal distance L ' is about 4 mm.
  • the elongation of the hinge is 80%.
  • the tensile strength of the hinge is 800N.
  • the trim is manufactured by the following steps:
  • the airbag door hinge C1 is placed in a mold for forming the airbag frame A22 and the skeleton A21, and the airbag door substrate A12, and the airbag door hinge C1 is placed in the mold for forming the framework A21 and the airbag door substrate A12;
  • the foam layer and the skin layer are compounded on the integrally formed part including the skeleton A21 and the airbag door substrate A12 away from the airbag frame A22 to form a bearing member foam layer A23, a bearing member skin layer A24 and an airbag door.
  • a weakening area W is provided between the airbag door substrate A12 and the frame A21 through a weakening process, so that the airbag door A1 is flipped open to form an opening O to facilitate the deployment of the airbag G from the opening O.
  • the trim is manufactured by the following steps:
  • the foam layer and skin layer are compounded on the integrally formed part of the skeleton A21 and the airbag door substrate A12 away from the airbag frame A22 to form a bearing component foam layer A23, a bearing component skin layer A24, and an airbag door foam.
  • the airbag frame A22 and the frame A21 are connected by welding, and the reinforcement door A11 and the airbag door substrate A12 are connected.

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Abstract

一种安全气囊门铰链（C1），其用于与安全气囊门（A1）和包围所述安全气囊门（A1）的承载部件（A2）连接，所述安全气囊门铰链（C1）为双层结构，具有第一纺织层（1）和第二纺织层（2），所述第一纺织层（1）和第二纺织层（2）通过多个连接部件（3）连接。一种用于汽车内部的饰件和该饰件的制造方法，所述饰件包括安全气囊门（A1）、包围所述安全气囊门（A1）的承载部件（A2）和安全气囊门铰链（C1）。

Description

一种安全气囊门铰链、包含其的用于汽车内部的饰件及饰件的制造方法
本申请要求于2018年9月14日提交的，发明名称为“一种安全气囊门铰链”的第201821507407.3号中国申请的优先权，该申请的内容整体援引加入本文。
技术领域
本公开涉及汽车配件领域，具体涉及一种用于汽车安全气囊门的自带拉伸的铰链结构以及包含该铰链的用于汽车内部的饰件。
背景技术
安全气囊门铰链为设置于汽车内部饰件中的连接安全气囊门和包围安全气囊门的承载部件且在安全气囊门打开时实现对其引导的部件。安全气囊的触发使得安全气囊门打开从而弹出安全气囊门。安全气囊门的设计应使得安全气囊门在安全气囊触发时易于打开，且为了不对安全气囊区域中的人造成可能的伤害，还应使得安全气囊门在任何情况下都不从所述承载部件中脱离。
安全气囊门铰链可以为织物的形式。中国专利申请文献CN105358385A公开了一种安全气囊罩铰链，其具有纺织基本结构，在该纺织基本结构中集成有阻止纱线，阻止纱线相比于基本结构的纱线具有相同或更低的断裂强度，并且阻止纱线相对于纺织基本结构具有更长的长度。
作用于安全气囊门铰链上的力与安全气囊门的大小有关。安全气囊门越大或越重，作用于铰链上的力就越大。现有技术中，基于织物的安全气囊门铰链延伸率较低或拉伸强力不够，容易出现由于在安全气囊门展开过程中铰链无法承受过大的剪切拉力而造成断裂，安全气囊门飞出而产生安全风险。
本公开内容
本公开涉及一种安全气囊门铰链，其用于与安全气囊门和包围所述安全气囊门的承载部件连接，其中，所述安全气囊门铰链为双层结构，具有第一纺织层1和第二纺织层2，所述第一纺织层1和第二纺织层2通过多个连接部件3连接。
在一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和第二纺织层2均为各自连续的纺织层。
在一个实施方案中，本公开的安全气囊门铰链中，所述第二纺织层2为第一纺织层1在边缘处折叠形成。
在另一个实施方案中，本公开的安全气囊门铰链，其中，所述第一纺织层1和第二 纺织层2中其中一层为连续的纺织层，另一层为包括至少一个间隔区域的纺织层。
在又一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和第二纺织层2均为包括至少一个间隔区域的纺织层。
在一个优选的实施方案中，本公开的安全气囊门铰链中，所述间隔区域由连接部件3限定。
在一个实施方案中，本公开的安全气囊门铰链中在纬向上两个相邻的连接部件3之间的纬向间距L为5-200mm。
在又一个实施方案中，本公开的安全气囊门铰链中在纬向上两个相邻的连接部件3之间的纬向间距L为10-100mm。
在另一个实施方案中，本公开的安全气囊门铰链中在纬向上两个相邻的连接部件3之间的纬向间距L为20-50mm。
在又一个实施方案中，本公开的安全气囊门铰链中在纬向上两个相邻的连接部件3之间的纬向间距L为5-70mm。
在另一个实施方案中，本公开的安全气囊门铰链中在纬向上两个相邻的连接部件3之间的纬向间距L为70-200mm。
在一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1与第二纺织层2之间的间隙为2mm以下。
在另一个实施方案中，本公开的安全气囊门铰链中，所述连接部件3为线、线圈、胶或其组合。
在又一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和第二纺织层2的横向密度分别为5-25线圈数/25mm；和/或纵向密度分别为5-25线圈数/25mm。
在还一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和第二纺织层2的克重分别为100-2000gsm。
在一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和第二纺织层2分别为针织物。
在优选的实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和第二纺织层2分别为纬编或经编织物。
在一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和/或第二纺织层2中分别包含线圈，通过将包含在第一纺织层1的线圈嵌入第二纺织层2和/或将包含在第二纺织层2的线圈嵌入第一纺织层1实现连接。
在另一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和第二纺织层2有相同的延伸率和拉伸强力。
在一个实施方案中，本公开的安全气囊门铰链的间隔区域的纬向间距之和L1与所述铰链的纬向总长D的比例L1/D为0.8以下，优选0.35-0.8。
在一个实施方案中，本公开的安全气囊门铰链中，在经向上两个相邻的所述连接部 件(3)之间的经向间距L’为150mm以下，优选为2-150mm。
在一个实施方案中，本公开的安全气囊门铰链中，所述第一纺织层1和所述第二纺织层2包含纤维材料。
在一个优选的实施方案中，本公开的安全气囊门铰链中，所述纤维材料包含合成纤维、天然纤维或其组合，优选包含聚乙烯、聚丙烯、再生纤维素纤维、聚酰胺、碳纤维、聚丙烯腈、聚酯、纤维素、棉、剑麻、蕉麻、木棉、苎麻、亚麻、大麻、黄麻、动物毛、蚕丝或其组合。
在一个实施方案中，所述线圈被配置为拉伸或伸长以在安全气囊展开时提供所述气囊门铰链的拉伸。
在一个实施方案中，所述安全气囊门铰链与所述安全气囊门和所述承载部件通过嵌件注塑工艺连接。
在另一方面，本发明涉及一种用于汽车内部的饰件，包括：安全气囊门，包围所述安全气囊门的承载部件，和本发明的安全气囊门铰链，其中所述安全气囊门铰链用于与安全气囊门和所述承载部件的连接。
在一个实施方案中，承载部件包括：骨架和气囊框，所述骨架限定开口，用于气囊通过所述开口展开，所述骨架与所述气囊框一体成型，所述安全气囊门被配置为覆盖所述开口，并且所述安全气囊门铰链用于与所述安全气囊门和所述骨架连接。
在另一个实施方案中，承载部件包括骨架和气囊框，所述骨架限定开口，用于气囊通过所述开口展开，所述骨架与所述气囊框连接，所述安全气囊门被配置为覆盖所述开口，并且所述安全气囊门铰链用于与所述安全气囊门和所述气囊框连接。
在又一方面，本发明涉及一种制造饰件的方法，所述安全气囊门包括安全气囊门基板，所述方法包括：(1)提供所述安全气囊门铰链；(2)所述安全气囊门铰链置于成型所述气囊框与所述骨架、所述安全气囊门基板的模具中；(3)向所述模具中注射塑料融料，至少部分所述安全气囊门铰链被塑料融料覆盖；(4)待塑料融料冷却后取出，得到所述气囊框和所述骨架、安全气囊门基板一体成型，且所述安全气囊门铰链被嵌于所述骨架和安全气囊门基板中；(5)在所述安全气囊门基板和所述骨架之间通过弱化工艺设置弱化区域，以便于所述安全气囊门翻转打开形成所述开口以利于气囊从所述开口展开。
在还一方面，本发明涉及一种制造饰件的方法，其中安全气囊门包括加强门和安全气囊门基板，所述方法包括：(1)提供所述安全气囊门铰链；(2)将所述安全气囊门铰链置于成型所述气囊框与所述加强门的模具中；(3)向所述模具中注射塑料融料，至少部分所述安全气囊门铰链被塑料融料覆盖；(4)待塑料融料冷却后取出，得到所述气囊框和所述加强门，且至少部分所述安全气囊门铰链被嵌于所述气囊框和所述加强门中以 实现所述加强门与所述气囊框的连接；(5)提供所述骨架，在所述安全气囊门基板和所述骨架之间通过弱化工艺设置弱化区域，以便于所述安全气囊门翻转打开形成所述开口以利于气囊从所述开口展开；(6)通过焊接连接所述气囊框和所述骨架以及连接所述加强门和安全气囊门基板。
本公开的用于汽车的内部饰件中的安全气囊门铰链，可以形成具有高延展性能和良好拉伸强力的织物产品，防止安全气囊门与承载部件分离。同时织物的高延伸率有助于降低织物在气囊门展开过程中受到的拉力，减小或避免织物受剪切拉力过大而造成断裂的风险。本公开用于汽车的内部饰件制造工艺简单，具有良好的安全性，适合工业化生产。
附图说明
图1A为本公开的一个实施方案的包括安全气囊门铰链的汽车内部饰件的示意图。
图1B为本公开的另一个实施方案的包括安全气囊门铰链的汽车内部饰件的示意图。
图2A-2G为本公开的实施方案的铰链结构的侧视示意图，图2H-2N分别为图2A-2G对应的俯视示意图，其中图2J-2N中箭头所指的方向为拉伸方向，图2A-2G中第一纺织层1、第二纺织层2右侧的小方块分别代表第一纺织层1、第二纺织层2的俯视示意图。图3A-3B为本公开的实施方案的铰链的俯视示意线圈图，其中箭头所指的方向为拉伸方向。
图4为本公开的实施方案中的第一纺织层1和第二纺织层2中可以使用的组织形态的示意图和线圈图。
图5A-5B为本公开的实施例的俯视示意图。
附图标记说明：
C1织物(安全气囊门铰链)              1第一纺织层
A1安全气囊门                        2第二纺织层
A2承载部件                          3连接部件
A21骨架                             A22气囊框
A23承载部件发泡层                   A24承载部件表皮层
G气囊                               O开口
A11安全气囊门的加强门               A12安全气囊门基板
A13安全气囊门发泡层                 A14安全气囊门表皮层
C10、C12、C13铰链的固定段           C11铰链的铰链段
W弱化区域                           虚线箭头安全气囊门打开方向
h间隙                               3(1)、3(2)连接方式
L纬向间距                             a、b连接部件-线圈
L’经向间距                           D铰链的纬向总长
L1间隔区域的纬向间距之和              →拉伸方向
S1间隔区域                            S2、S3连续区域
l2连续区域S2对应的纬向长度            l3连续区域S3对应的纬向长度
100示意图                             200线圈图
101向右移圈                           102向左移圈
103三圈重合(I)                        104三圈重合(II)
105三圈重合(III)                      106前针床集圈
107后针床集圈                         108孔
109向左整列移动                       110向右整列移动
111左绞                               112右绞
113左扳                               114右扳
115前针床浮线                         116后针床浮线
具体实施方式
以下将对本公开进一步详细说明，应理解，所述用语旨在描述目的，而非限制本公开。
除非另有说明，本文使用的所述技术和科学术语具有与本公开所属领域技术人员通常所理解的相同的含义。若存在矛盾，则以本申请提供的定义为准。当以范围、优选范围、或者优选的数值上限以及优选的数值下限的形式表述某个量或其他值或参数的时候，应当理解相当于具体揭示了通过将任意一对范围上限或优选数值与任意范围下限或优选数值结合起来的任何范围，而不考虑该范围是否具体揭示。除非另有说明，本文所列出的数值范围旨在包括范围的端点和该范围内的所有整数和分数(小数)。
应当理解的是，绘图不一定按比例绘制。
除非另有说明，所有的百分比、份数、比例等都是基于重量的。
术语“约”、“大约”当与数值变量并用时，通常指该变量的数值和该变量的所有数值在实验误差内(例如对于平均值95％的置信区间内)或在指定数值的±10％内，或更宽范围内。
表述“包含”或与其同义的类似表述“包括”、“含有”和“具有”等是开放性的，不排除额外的未列举的元素、步骤或成分。表述“由…组成”排除未指明的任何元素、步骤或成分。表述“基本上由…组成”指范围限制在指定的元素、步骤或成分，加上任选存在的不会实质上影响所要求保护的主题的基本和新的特征的元素、步骤或成分。应当理解，表述“包含”涵盖表述“基本上由…组成”和“由…组成”。
本文所使用的术语“一种或多种”指一种、两种、三种、四种、五种、六种或更多。
本文所使用的术语“两种或更多种”指两种、三种、四种、五种、六种或更多。
本文所使用的术语“铰链”即为以织物形式的铰链，特别是以网布形式的铰链。
本文所使用的术语“横向密度”简称为“横密”，为沿线圈横列方向在规定长度(25mm)内的线圈数。横向密度使用本领域所熟知的方法进行计算。例如可通过规定长度(25mm)与圈距之比计算得出。在本文中，横向也可理解为纬向。
本文所使用的术语“纵向密度”简称为“纵密”，为沿线圈纵行方向在规定长度(25mm)内的线圈数。纵向密度使用本领域所熟知的方法进行计算。例如可通过规定长度(25mm)与圈高之比计算得出。在本文中，纵向也可理解为经向。
本文所使用的术语“克重”为每平方米的干燥重量克数，单位常用gsm或g/m 2表示。
本文所使用的术语织物的“组织”为组成织物的基本结构单元(线圈、浮线、集圈)以及附加纱线或纤维集合体的配置、排列、组合与联结的方式。
本文所使用的术语“延展性”指针织物在受外力拉伸时的伸长特性，也称为延伸性。通常使用ISO 13934进行测量。延展性常用延伸率作为指标。本公开的第一纺织层和第二纺织层具有相同或不同的延伸率。本公开的铰链的延伸率为约20-200％，例如约50％、80％、100％、120％。
本文所使用的术语“拉伸强力”指织物受拉伸至断裂时所能承受的最大外力，单位为N。通常使用本领域所熟知的方法进行测量。例如为ISO 13934。本公开的第一纺织层和第二纺织层具有相同或不同的拉伸强力。本公开的铰链的拉伸强力通常使用有效宽度(纬向宽度)为5cm的试样进行测试，拉伸的方向为铰链的经向方向。拉伸强力为约800-4000N，例如为约800N、1200N、1500N、2000N、4000N。在本文中，铰链的拉伸变形例如可以通过第一纺织层和/或第二纺织层包含的线圈的拉伸变形实现。
本文所使用的术语“嵌件注塑工艺”指在模具内装入预先准备的异材质嵌件(如本公开的铰链)后注入树脂，熔融的树脂材料与嵌件接合固化，制成一体化产品的成型工法。
对于本文所使用的处于相同关系的构件名称所划分的术语“第一”、“第二”，本公开不受限于本文描述的顺序。
本公开提供一种安全气囊门铰链，其用于与安全气囊门和包围所述安全气囊门的承载部件连接。本公开还提供一种用于汽车内部的饰件，包括：安全气囊门，包围所述安全气囊门的承载部件，和安全气囊门铰链，其中所述安全气囊门铰链用于与安全气囊门和承载部件的连接。所述承载部件也可称为承接部件。
参考图1A，为本公开的包括安全气囊门铰链的汽车内部饰件的示意图，其示出了用于安全气囊门的铰链的一个实施方案的位置。如图1A所示，本公开的一个实施方案的用于汽车内部的饰件，包括：安全气囊门A1(粗虚线内所示组件)，包围安全气囊门 A1的承载部件A2，和安全气囊门铰链C1，即织物。铰链C1用于与安全气囊门A1和承载部件A2连接。所述连接例如可使用嵌件注塑工艺完成。
具体地，承载部件A2包括骨架A21和气囊框A22。骨架A21限定开口O，用于气囊G通过开口O展开。气囊框A22与骨架A21一体成型。在一个实施方案中，承载部件A2还包括承载部件发泡层A23和/或承载部件表皮层A24。承载部件发泡层A23和承载部件表皮层A24依次设置于骨架A21远离气囊框A22的一侧。承载部件发泡层A23和承载部件表皮层A24可以具有相同或不同的材料组成。
安全气囊门A1被配置为覆盖所述开口O。安全气囊门A1包括从下往上依次设置的安全气囊门基板A12以及任选存在的安全气囊门发泡层A13和安全气囊门表皮层A14。具体地，安全气囊门铰链C1用于与安全气囊门基板A12和骨架A21连接。其中安全气囊门铰链C1包括固定段C10、C13和铰链段C11。固定段C10、C13分别固定于骨架A21和安全气囊门基板A12中。在一个实施方案中，铰链段C11也固定于骨架A21和安全气囊门基板A12中。安全气囊门发泡层A13和安全气囊门表皮层A14可以具有相同或不同的材料组成。
在一个实施方案中，承载部件发泡层A23、安全气囊门发泡层A13具有相同的材料组成。承载部件表皮层A24和安全气囊门表皮层A14具有相同的材料组成。
在另一个实施方案中，骨架A21与安全气囊门基板A12具有相同的材料组成。在又一个实施方案中，骨架A21与安全气囊门基板A12为一体成型。
在骨架A21中，还包含弱化区域W，其设置于安全气囊门所覆盖的开口中远离铰链C1与骨架A21连接的一侧，以使得安全气囊门可以容易地被打开，气囊得以从气囊框中朝向安全气囊门的方向展开。图1A中虚线箭头所指的方向为安全气囊门打开的方向。
参考图1B，为本公开的包括安全气囊门铰链的汽车内部饰件的示意图，其示出了用于安全气囊门的铰链的另一个实施方案的位置。如图1B所示，本公开的另一个实施方案的用于汽车内部的饰件，包括：安全气囊门A1(粗虚线内所示组件)，包围安全气囊门A1的承载部件A2，和安全气囊门铰链C1，即织物。铰链C1用于与安全气囊门A1和承载部件A2连接。该连接例如可使用嵌件注塑工艺完成。
具体地，承载部件A2包括骨架A21和气囊框A22。骨架A21限定开口O，用于气囊G通过开口O展开。所述骨架A21与气囊框A22连接。连接的方式包括但不限于焊接、粘接、铆接、螺纹连接、卡勾连接，优选为焊接。在一个实施方案中，承载部件A2中，还包含承载部件发泡层A23和/或承载部件表皮层A24。承载部件发泡层A23和承载部件表皮层A24依次设置于骨架A21远离气囊框A22的一侧。承载部件发泡层A23和承载部件表皮层A24可以具有相同或不同的材料组成。
安全气囊门A1被配置为覆盖所述开口。安全气囊门A1包括从下往上依次设置的加强门A11、安全气囊门基板A12以及任选存在的安全气囊门发泡层A13和安全气囊 门表皮层A14。其中加强门A11和安全气囊门基板A12的连接方式包括但不限于焊接、粘接、铆接、螺纹连接、卡勾连接，优选为焊接。安全气囊门发泡层A13和安全气囊门表皮层A14可以具有相同或不同的材料组成。
在一个实施方案中，承载部件发泡层A23、安全气囊门发泡层A13具有相同的材料组成。承载部件表皮层A24和安全气囊门表皮层A14具有相同的材料组成。
在另一个实施方案中，骨架A21与安全气囊门基板A12具有相同的材料组成。在又一个实施方案中，骨架A21与安全气囊门基板A12为一体成型。
安全气囊门铰链C1用于与安全气囊门的加强门A11和气囊框A22连接。其中安全气囊门铰链C1包括固定段C12、C13和铰链段C11。固定段C12、C13分别固定于气囊框A22和安全气囊门A1中的加强门A11中。铰链段C11处于松弛状态。
在骨架A21中，还包含弱化区域W，其设置于安全气囊门所覆盖的开口的两侧，以使得安全气囊门可以容易地被打开，气囊得以从气囊框中朝向安全气囊门的方向展开。图1B中箭头所指的方向为安全气囊门打开的方向。
在一个实施方案中，本公开的饰件的制造方法包括：
(1)提供安全气囊门铰链C1；
(2)将安全气囊门铰链C1置于成型气囊框A22与骨架A21、安全气囊门基板A12的模具中；
(3)向所述模具中注射塑料融料，至少部分所述安全气囊门铰链C1被塑料融料覆盖；
(4)待塑料融料冷却后取出，得到气囊框A22和骨架A21、安全气囊门基板A12一体成型，且安全气囊门铰链C1被嵌于骨架A21和安全气囊门基板A12中；
(5)在安全气囊门基板A12和骨架A21之间通过弱化工艺设置弱化区域W，以便于安全气囊门A1翻转打开形成开口O以利于气囊G从开口O展开。
具体地，步骤(2)中成型气囊框A22与骨架A21、安全气囊门基板A12的模具为一体成型模具。
步骤(2)中安全气囊门铰链C1置于模具中成型骨架A21和成型安全气囊门基板A12的部分。
步骤(3)所述的塑料融料为本领域通常使用的塑料融料，例如聚氯乙烯、聚丙烯、聚丙烯腈-丁二烯-苯乙烯、聚酯、聚氨酯。塑料融料的量应使得安全气囊门铰链C1的至少一面得以被嵌入骨架A21和安全气囊门基板A12中或者以一定的深度被嵌入骨架A21和安全气囊门基板A12中，从而能被骨架A21和安全气囊门基板A12固定。
步骤(4)中气囊框A22和骨架A21、安全气囊门基板A12一体成型。安全气囊门铰链C1被嵌于骨架A21和安全气囊门基板A12中。
步骤(4)之后，步骤(5)之前还可以任选的在骨架A21和安全气囊门基板A12的一体 成型件上远离气囊框A22的方向复合发泡层和表皮层，形成承载部件发泡层A23、承载部件表皮层A24以及安全气囊门发泡层A13、安全气囊门表皮层A14。
步骤(5)中弱化区域W的设置应使得安全气囊门基板A12与骨架A21的交界处具有相比于安全气囊门基板A12和骨架A21的其他部分更弱的力学强度，从而安全气囊门A1可以在期望的条件下打开、翻转。通常，弱化工艺可以为本领域通常所使用的工艺，例如激光弱化、热刀弱化、冷刀弱化。弱化区域的深度可以任选地从骨架A21延伸至发泡层A23，但不应延伸至表皮层A24。
在另一个实施方案中，本公开的饰件的制造方法包括：
(1)提供安全气囊门铰链C1；
(2)将安全气囊门铰链C1置于成型气囊框A22与加强门A11的模具中；
(3)向模具中注射塑料融料，至少部分安全气囊门铰链C1被塑料融料覆盖；
(4)待塑料融料冷却后取出，得到气囊框A22和加强门A11，且至少部分安全气囊门铰链C1被嵌于气囊框A22和加强门A11中以实现加强门A11与气囊框A22的连接；
(5)提供骨架A21，在安全气囊门基板A12和骨架A21之间通过弱化工艺设置弱化区域W，以便于所述安全气囊门A1翻转打开形成开口O以利于气囊G从开口O展开；
(6)通过焊接连接气囊框A22和骨架A21，以及连接加强门A11和安全气囊门基板A12。
具体地，步骤(2)中安全气囊门铰链C1的两个相对的固定段C12、C13分别置于模具中成型气囊框A22以及成型加强门A11的部分。
步骤(3)中塑料融料如上文所述。塑料融料的量应使得安全气囊门铰链C1的至少一面得以被嵌入气囊框A22和加强门A11中或者以一定的深度被嵌入气囊框A22和加强门A11中，从而能被气囊框A22和加强门A11固定。
步骤(4)中铰链C1的两个相对的固定段C12、C13分别嵌于气囊框A22以及加强门A11中，从而加强门A11与气囊框A22通过铰链C1的铰链段C11连接。
提供骨架A21和安全气囊门基板A12的一体成型件。步骤(4)之后，步骤(5)之前还可以任选的在骨架A21和安全气囊门基板A12的一体成型件上远离气囊框A22的方向复合发泡层和表皮层，形成承载部件发泡层A23、承载部件表皮层A24以及安全气囊门发泡层A13、安全气囊门表皮层A14。
步骤(5)中弱化区域W的设置应使得安全气囊门基板A12与骨架A21的交界处具有相比于安全气囊门基板A12和骨架A21的其他部分更弱的力学强度，从而安全气囊门A1可以在期望的条件下翻转或打开。通常，弱化工艺可以为本领域通常所使用的工艺，例如激光弱化、热刀弱化、冷刀弱化。弱化区域的深度可以任选地从骨架A21延伸至发泡层A23，但不应延伸至表皮层A24。
参考图2A，为本公开的一个实施方案的铰链的侧视示意图。本公开的安全气囊门 铰链为双层结构，具有第一纺织层1和第二纺织层2。第一纺织层1与第二纺织层2平行设置。第一纺织层1与第二纺织层2通过多个连接部件3相连。
参考图2A，第一纺织层1与第二纺织层2之间的间隙h为约2mm以下。所述第一纺织层1与第二纺织层2之间的间隙h为第一纺织层1的下侧与第二纺织层2的上侧之间的距离。具体地，第一纺织层1的下侧与第二纺织层2的上侧之间在连接部件3连接处的间隙为约0mm，即在此处第一纺织层1的下侧与第二纺织层2的上侧完全贴合，没有间隙。对于没有连接部件3处的第一纺织层1的其余部分和第二纺织层2中的其余部分各自分开，即二者之间为空气或称为空气层。第一纺织层1的下侧与第二纺织层2的上侧之间在没有连接部件3处的距离为约2mm以下。需要说明的是，由于纺织层为柔软的，在没有连接部件3处的间隙并非一个恒定的值，会随着与连接部件3的距离远近有所差异，但均在2mm以下的范围内。图2A中关于第一纺织层1和第二纺织层2之间的间隙h的标识仅为示例性的。优选地，第一纺织层1的下侧与第二纺织层2的上侧之间在没有连接部件3处的距离也可为约0mm。即，第一纺织层1的下侧与第二纺织层2完全贴合，中间没有间隙，如图2B所示。
参考图2A，第一纺织层1和第二纺织层2的厚度分别为约0.8mm。图2A中的铰链的厚度在连接部件3处为约1.6mm；在没有连接部件3处为约3.6mm以下。参考图2B，第一纺织层1和第二纺织层2的厚度分别为约0.8mm。图2B中第一纺织层1和第二纺织层2完全贴合，铰链的厚度为约1.6mm。纺织层的厚度略厚对于获得较好的延伸率是有利的，但还需考虑到注塑工艺的可行性。结合考虑材料本身的厚度、注塑工艺和延伸率，第一纺织层1和第二纺织层2的厚度通常分别为约0.5-1mm。铰链的厚度通常为约1-4mm。
在纬向上两个相邻的连接部件3之间的距离为纬向间距L。连接部件3之间的合适的纬向间距L可给织物带来良好的拉伸强力和延伸率。过大的纬向间距L不利于织物整体强度的提高。过小的纬向间距L可能影响到织物整体的延伸率。用于第一纺织层1和第二纺织层2的连接的纬向上两个相邻的连接部件3之间的纬向间距L为约5-200mm，如为约10-100mm，约20-50mm，约20-35mm，约5-70mm，约70-200mm。
参考图2A和图2B及其各自对应的俯视示意图2H和2I，第一纺织层1和第二纺织层2均为各自连续的纺织层。连接部件3可以基本均匀地分布于第一纺织层和第二纺织层之间，即纬向上各相邻的连接部件3之间的纬向间距L可以为基本相同的。用于第一纺织层1和第二纺织层2的连接的纬向上两个相邻的连接部件3之间的纬向间距L为约5-200mm，优选为约10-100mm，更优选为约20-50mm，甚至更优选为约20-35mm，例如为约5、30mm。纬向上各相邻的连接部件3之间的纬向间距L也可以有所差异，即纬向上各相邻的连接部件3之间的纬向间距L为不同的，但纬向间距L的变化范围应在上文所述的纬向间距的范围内。
在一个实施方案中，安全气囊门铰链中第一纺织层1和第二纺织层2中其中一层为 连续的纺织层，另一层为包括至少一个间隔区域的纺织层。间隔区域为对应的纺织层在该区域中为缺失的。即，第一纺织层1或第二纺织层2在纬向上相邻的两个连接部件3之间也可以为间断地，在间隔区域处纬向上同一空间内仅存在第一纺织层1或第二纺织层2。间隔区域由连接部件3限定。各间隔区域在纬向上的长度为纬向上两个相邻的连接部件之间的距离，也就是纬向间距L。为了保证铰链的适合的延伸率和拉伸强力，间隔区域的各纬向间距L之和L1与铰链的纬向总长D的比例L1/D为约0.8以下。铰链的纬向总长D没有特别的限定，通常为约160-250mm。
参考图2C和其对应的俯视示意图2J，铰链中包含多个间隔区域。间隔区域的总个数没有特别的限制，通常需满足间隔区域的纬向间距之和L1与铰链的纬向总长D的比例L1/D为约0.75以下，例如约0.43。图2C中各间隔区域的纬向间距可以相同或不同。连续区域为对应的纺织层在该区域中为连续的。即，在连续区域处纬向上同一空间内同时具有第一纺织层1和第二纺织层2。图2C中各连续区域纬向上相邻的两个连接部件3之间的纬向间距L也可以相同或不同，各间隔区域的纬向间距L与各连续区域的纬向间距L可以相同或不同，但均在上文所述的纬向间距L的范围内，优选在约5-70mm的范围内，更优选为约20-50mm，例如为约25、30、40mm。根据实际延伸率和拉伸强力的需求可对各间隔区域的纬向间距L、连续区域的纬向间距L以及间隔区域的数目进行调整。
参考图2D和其对应的俯视示意图2K，铰链中可以包含1个间隔区域，即仅包含两个连接部件3。仅为第一纺织层1或第二纺织层2的间隔区域S1设置于绞链纬向上的中间部位。位于间隔区域S1纬向一侧的第一纺织层1和第二纺织层2的连续区域S2的纬向长度l2与位于间隔区域S1纬向另一侧(与S2相对)的第一纺织层1和第二纺织层2的连续区域S3的纬向长度l3基本相同，即l2＝l3，且连续区域S2和S3具有基本相同的拉伸强力和延伸率。参考图2D，连接部件3之间的纬向间距L优选为约70-200mm，例如为约70、100、130、160、180、200mm。由于仅存在两个连接部件3，因此纬向间距L即间隔区域的纬向间距之和L1。间隔区域的纬向间距之和L1与铰链的纬向总长D的比例L1/D为约0.8以下，优选约0.35-0.8，例如为约0.35、0.45、0.6、0.7、0.8。
在一个实施方案中，安全气囊门铰链的第二纺织层2为第一纺织层1在边缘处折叠形成。参考图2E和其对应的俯视示意图2L，铰链中包含1个间隔区域，区别于图2D的方案，图2E的方案中第二纺织层2为第一纺织层1在第一纺织层1的两个相对的边缘处向该纺织层的中间的方向翻折180度形成。即第一纺织层1和第二纺织层2为同一块织物。如图2E所示，由于仅存在两个连接部件3，因此纬向间距L即间隔区域的纬向间距之和L1。间隔区域的纬向间距之和L1与铰链的纬向总长D的比例L1/D为约0.8以下，优选约0.35-0.8，例如为约0.35、0.45、0.6、0.7、0.8。
在一个实施方案中，安全气囊门铰链中第一纺织层1和第二纺织层2均为包括至少一个间隔区域的纺织层。参考图2F和其对应的俯视示意图2M，第一纺织层1和第二纺 织层2均包括至少一个间隔区域的纺织层，但第一纺织层1和第二纺织层2的设置使得整个铰链是连续的，即在间隔区域处纬向上同一空间内具有第一纺织层1或第二纺织层2。图2F中，第一纺织层1和第二纺织层2的设置使得在纬向上同一空间内第一纺织层1和第二纺织层2可以同时为连续区域，也可以择一具有间隔区域。图2F中各连续区域纬向上相邻的两个连接部件3之间的纬向间距L也可以相同或不同，各间隔区域的纬向间距L与各连续区域的纬向间距L可以相同或不同。纬向间距L为约5-200mm，优选在约5-70mm，更优选为约20-50mm，例如为约25、30、40mm。根据实际延伸率和拉伸强力的需求可对各间隔区域的纬向间距L、连续区域的纬向间距L以及间隔区域的数目进行调整。
整个铰链中第一纺织层1和第二纺织层2的设置也可以使得在纬向上同一空间内第一纺织层1和第二纺织层2均不同时为连续区域。参考图2G和其对应的俯视图2N，第一纺织层1和第二纺织层2的设置使得整个铰链中纬向上同一空间内为第一纺织层1的间隔区域或第二纺织层2的间隔区域，或者为第一纺织层1的连续区域或第二纺织层2的连续区域，但不同时为连续区域。但这样的设置应使得整个铰链是连续的，即整个铰链中纬向上同一空间内第一纺织层1和第二纺织层2不同时为间隔区域。图2G中各间隔区域的纬向间距L可以相同或不同。纬向间距L为约5-200mm，优选在约5-70mm，更优选为约20-50mm，例如为约25、30、40mm。根据实际延伸率和拉伸强力的需求可对各间隔区域的纬向间距L、连续区域的纬向间距L以及间隔区域的数目进行调整。
连接部件3的数目取决于对延伸率和拉伸强力的实际需求，没有特别的限定。连接部件3的连接形式没有特别的限定，可以为线圈、线、胶或其组合的形式。当为线圈或线的形式时，所述线圈或线的材料包括但不限于纤维、金属等。当使用纤维作为材料时，所述纤维如下文中所列举。
如图3A所示，为本公开的一个实施方案的铰链的俯视线圈图。图中所述区域不包含间隔区域。第一纺织层1(黑色部分)和第二纺织层2(白色部分)构造为针织物。第一纺织层1与第二纺织层2的织物也可以为机织物或其与针织物的组合。图3A中第一纺织层1与第二纺织层2的织物具体为纬编织物。但也可以为经编织物。织物组织形态没有特别的限定，包括但不限于基本组织、变化组织、单面组织、双面组织、复合组织，如纬平组织、罗纹组织、集圈组织、移圈组织、纱罗组织、添纱组织、浮线添纱组织、衬纬组织、如图4所示的组织或其组合等，优选纬平组织、罗纹组织、集圈组织、移圈组织、纱罗组织、添纱组织、浮线添纱组织、图4所示的组织或其组合。
图3A的实施方案中，第一纺织层1和第二纺织层2均使用同一种组织形态，为纬平组织。但在本公开中，第一纺织层1和第二纺织层2的组织形态也可以不同。第一纺织层1和第二纺织层2各自的纺织层内还可分别使用一种或多种组织形态的组合。在图3A的实施方案中，第一纺织层1与第二纺织层2的网眼花型相同。但在本公开中，第一纺织层和第二纺织层的网眼花型也可以不同。
第一纺织层1和第二纺织层2的织造方法为本领域通常使用的织造方法。图3A中使用针织横机编织成型。
在一个实施方案中，第一纺织层1和第二纺织层2包含纤维材料。在另一个实施方案中，编织第一纺织层1和第二纺织层2所使用的材料为纤维。第一纺织层1和第二纺织层2分别由至少一根纤维单元组成。所述纤维单元通过缠绕、交叉、线圈编织以形成纺织层。所述纤维为本领域通常所使用的用于纺织的纤维，包括但不限于合成纤维例如聚乙烯、聚丙烯、再生纤维素纤维、聚酰胺、碳纤维、聚丙烯腈、聚酯如芳纶、涤纶、锦纶、腈纶、丙纶、维纶、氯纶等，天然纤维如纤维素、棉、剑麻、蕉麻、木棉、苎麻、亚麻、大麻、黄麻、动物毛、蚕丝等。可以使用一种类型的纤维，也可以使用两种或更多种类型的纤维的组合。第一纺织层1和第二纺织层2的材料选择应使得其各自具有一定的拉伸强力和延伸率。从而有助于使得铰链具有良好的拉伸强力和延伸率。第一纺织层1与第二纺织层2的纤维类型可以相同也可以不同。但通常应使得这两层的力学性能如延伸率和拉伸强力差别不大。在图3A的实施方案中，第一纺织层1与第二纺织层2的纤维类型相同。在图3A的实施方案中，第一纺织层1和第二纺织层2所使用的纤维均为芳纶纤维。
第一纺织层1和第二纺织层2应具有一定的横向密度和纵向密度范围，以及一定的克重，使得其具有优良的延伸率和拉伸强力，从而在安全气囊弹出时安全气囊门不会从承载部件中脱离。第一纺织层1和第二纺织层2的横向密度通常分别为约5-25线圈数/25mm，优选为约5-10线圈数/25mm，例如为约7、13线圈数/25mm。第一纺织层1和第二纺织层2的纵向密度通常分别为约5-25线圈数/25mm，优选为约9-15线圈数/25mm，例如为约12线圈数/25mm。第一纺织层1和第二纺织层2的克重分别为约100-2000gsm，优选为约400-800gsm，例如为约560gsm。第一纺织层1和第二纺织层2可具有基本相同或不同的横向密度、纵向密度和克重。第一纺织层1和第二纺织层2各自的纺织层内不同区域也可具有不同的横向密度、纵向密度和克重，但这样的差异均在上文所述的范围内进行变动。
参考图3A，连接部件3为线圈连接的方式。以黑色线圈为主的是第一纺织层1，以白色线圈为主的是第二纺织层2。第一纺织层1和第二纺织层2中分别包含线圈，通过将包含在第一纺织层1的线圈嵌入第二纺织层2和/或将包含在第二纺织层2的线圈嵌入第一纺织层1实现连接。即，第一纺织层1和第二纺织层2中的线圈相互嵌套实现连接。具体的，连接方式3(1)为包含在第二纺织层2中的白色线圈a嵌入第一纺织层1。连接方式3(2)为包含在第一纺织层1中的黑色线圈b嵌入第二纺织层2中。第一纺织层1和第二纺织层2同时编织，在编织至连接部件3处时，第一纺织层1线圈通过织针跳到第二纺织层2，第二纺织层2线圈通过织针跳到第一纺织层1，使得线圈a和线圈b能够分别嵌入相对的纺织层中，即第一纺织层1和第二纺织层2。在第一纺织层1中，原应处于第一纺织层1中的连接方式3(1)的位置的黑色线圈b嵌入第二纺织层2中原应 处于连接方式3(2)的位置的白色线圈a的位置，且原应处于第二纺织层中的连接方式3(2)的位置的白色线圈a嵌入第一纺织层1中原应处于连接方式3(1)的位置的黑色线圈b的位置。即线圈a、b的位置在相对的纺织层中相互替换实现连接。嵌入的方式为缠绕，即指包含在第二纺织层2中的线圈a缠绕于包含在第一纺织层1的线圈中，包含在第一纺织层1中的线圈b缠绕于包含在第二纺织层2的线圈中。当安全气囊展开时，线圈被拉伸或伸长，从而有助于提供气囊门铰链的拉伸。
在本公开中，还可以以其他的方式实现连接。在一个实施方案中，通过将包含在第一纺织层1的线圈嵌入第二纺织层2，使其与第二纺织层2中包含的线圈缠绕实现连接。在另一个实施方案中，通过将包含在第二纺织层2的线圈嵌入第一纺织层1，使其与第一纺织层1中包含的线圈缠绕实现连接。在又一个实施方案中，通过使用独立于第一纺织层和第二纺织层的线圈将第一纺织层与第二纺织层连接。在优选的实施方案中，线圈与纺织层的连接方式为嵌入、缠绕或本领域所熟知的其他方式。在还一个实施方案中，第一纺织层和第二纺织层通过多个线如连接线连接，所述连接线可以以本领域所熟知的任何方式连接至第一纺织层和第二纺织层，所述连接线可以与第一和/或第二纺织层呈任意的角度。
参考图3A，纬向间距L为纬向上同一纺织层的第一个作为连接部件的线圈的一侧至相邻的第二个作为连接部件的线圈的同一侧在同一水平方向之间的距离。如上文所述，纬向间距L可以为约5-200mm，例如为约10-100mm，约20-50mm，约20-35mm，约5-70mm，约70-200mm，例如为约5、30、70、160、200mm。
在一个实施方案中，第一纺织层1和第二纺织层2中具有基本均匀的力学性能如延伸率、拉伸强力。拉伸和延伸的方向为纺织层中线圈的纵向或经向方向。本公开的铰链的延伸率为约20-200％，例如为约100％、50％、80％、120％。本公开的铰链的拉伸强力为约800-4000N，例如为约800N、1500N、2000N、4000N。在另一个实施方案中，为了实现延伸可控的效果，第一纺织层1和第二纺织层2具有不同的力学性能如延伸率、拉伸强力，但这样的力学性能均在本文所述的范围内。
在一个实施方案中，第一纺织层1和第二纺织层2内部不同的区域具有基本均匀的力学性能如延伸率、拉伸强力。在另一个实施方案中，第一纺织层1和第二纺织层2内部不同的区域具有不同的力学性能如延伸率、拉伸强力，但均在本文所述的范围内。
参考图3A，用作第一纺织层1和第二纺织层2中的连接部件3的线圈的嵌入或替换按纵列进行。参考图3A，第一纺织层1中的第I列、II列由第二纺织层2中的线圈嵌入或替换。第二纺织层2中的第I’列、II’列由第一纺织层1中的线圈嵌入或替换。
在一个实施方案中，用作第一纺织层1和第二纺织层2中的连接部件3的线圈按纵列进行的嵌入或替换也可以使用除了线圈以外的其他的连接部件进行连接，例如以胶或线如连接线的形式或者同时使用胶、线、线圈中的一种或多种的连接形式的组合。
参考图3B(图中所述区域不包含间隔区域)，以黑色线圈为主的是第一纺织层1，以 白色线圈为主的是第二纺织层2，用于第一纺织层1和第二纺织层2的连接部件3的线圈的嵌入或替换按点进行。图3B中用作连接部件3的线圈的纬向间距L的范围符合本文中L的范围。如图3B所示，经向间距L’为在经向上两个相邻的连接部件之间的经向间距。具体地，即同一纺织层内经向上第一个作为连接部件的线圈的顶部至相邻的第二个作为连接部件的线圈的顶部在同一垂直方向之间的距离，如图3B所示。经向间距L’可以为约150mm以下，优选为约2-150mm，如3-50mm，4-20mm。例如为约4、10、30、80、100、120mm。考虑到连接部件3的线圈的嵌入或替换以线圈个数为单元进行嵌入或替换，当经向间距L’小于2mm时，通常可理解为该纵列上每个线圈均被相对层中的线圈嵌入或替换，例如为图3A的方案。
需要指出的是，图3A和图3B为示例性的，并不代表连接部件3之间实际存在的线圈的个数。
实施例
参照下文的实施例进一步详细地描述本公开，但是其并不意图限制本公开的范围。
实施例1-7为安全气囊门铰链的实施例，其均使用芳纶纤维作为纺织材料，织物组织形态为纬平组织，使用针织横机编织成型，实施例1-6具有连接部件3为如图3A所示的线圈连接方式。实施例7具有连接部件3为如图3B所示的线圈连接方式。第一纺织层1和第二纺织层2中的横向密度均为13线圈数/25mm，纵向密度为12线圈数/25mm，克重为560gsm，且在各自的纺织层内均匀分布。
以下实施例中第一纺织层1和第二纺织层2的间隙h为0mm。即第一纺织层1和第二纺织层2完全贴合。
实施例1
铰链的侧视图和俯视图分别如图2B和2I所示。铰链的第一纺织层1和第二纺织层2均为各自连续的纺织层。用于第一纺织层1和第二纺织层2的连接部件3在纬向上两个相邻的连接部件3之间的纬向间距L为约30mm。第一纺织层1和第二纺织层2的延伸率相同，分别为120％。铰链的延伸率为100％。铰链的拉伸强力为2000N。
实施例2
铰链的侧视图和俯视图分别如图2B和2I所示。铰链的第一纺织层1和第二纺织层2均为各自连续的纺织层。用于第一纺织层1和第二纺织层2的连接部件3在纬向上两个相邻的连接部件3之间的纬向间距L为约5mm。第一纺织层1和第二纺织层2的延伸率相同。铰链的延伸率为50％。铰链的拉伸强力为4000N。
实施例3
铰链的侧视图和俯视图分别如图2C和5A所示。铰链中第一纺织层1为连续的纺织层，第二纺织层2为包括3个间隔区域的纺织层。用于第一纺织层1和第二纺织层2的连接部件3在纬向上两个相邻的连接部件3之间的纬向间距L均为30mm，铰链的纬 向总长D为210mm，间隔区域的纬向间距之和L1为90mm，L1/D为0.43。铰链的延伸率为100％。铰链的拉伸强力为1200N。
实施例4
铰链的侧视图和俯视图分别如图2D和5B所示。铰链中第一纺织层1为连续的纺织层，第二纺织层2为包括1个间隔区域的纺织层。用于第一纺织层1和第二纺织层2的连接部件3在纬向上两个相邻的连接部件3之间的纬向间距L或间隔区域的纬向间距之和L1为160mm，铰链的纬向总长D为200mm，l2＝l3＝20cm，L1/D为0.8。铰链的延伸率为80％。铰链的拉伸强力为800N。
实施例5
铰链的侧视图和俯视图分别如图2D和5B所示。铰链中第一纺织层1为连续的纺织层，第二纺织层2为包括1个间隔区域的纺织层。用于第一纺织层1和第二纺织层2的连接部件3在纬向上两个相邻的连接部件3之间的纬向间距L或间隔区域的纬向间距之和L1为70mm，l2＝l3，铰链的纬向总长D为200mm，L1/D为0.35。铰链的延伸率为100％。铰链的拉伸强力为1500N。
实施例6
铰链的侧视图和俯视图分别如图2D和5B所示。铰链中第一纺织层1为连续的纺织层，第二纺织层2为包括1个间隔区域的纺织层。用于第一纺织层1和第二纺织层2的连接部件3在纬向上两个相邻的连接部件3之间的纬向间距L或间隔区域的纬向间距之和L1为200mm，l2＝l3，铰链的纬向总长D为250mm，L1/D为0.8。铰链的延伸率为80％。铰链的拉伸强力为800N。
实施例7
铰链的侧视图和俯视图分别如图2B和2I所示。铰链的第一纺织层1和第二纺织层2均为各自连续的纺织层。用于第一纺织层1和第二纺织层2的连接部件3在纬向上两个相邻的连接部件3之间的纬向间距L为约30mm。经向间距L’为约4mm。铰链的延伸率为80％。铰链的拉伸强力为800N。
实施例8和9为汽车内部饰件的制备例
实施例8
饰件通过如下步骤制造：
(1)提供安全气囊门铰链C1；
(2)将安全气囊门铰链C1置于成型气囊框A22与骨架A21、安全气囊门基板A12的模具中且安全气囊门铰链C1置于模具中成型骨架A21和成型安全气囊门基板A12的部分；
(3)向所述模具中注射塑料融料，至少部分所述安全气囊门铰链C1被塑料融料覆 盖；
(4)待塑料融料冷却后取出，得到气囊框A22和骨架A21、安全气囊门基板A12的一体成型，且安全气囊门铰链C1被嵌于骨架A21和安全气囊门基板A12中；
(5)在包含骨架A21和安全气囊门基板A12的一体成型件上远离气囊框A22的方向复合发泡层和表皮层，形成承载部件发泡层A23、承载部件表皮层A24以及安全气囊门发泡层A13、安全气囊门表皮层A14；
(6)在安全气囊门基板A12和骨架A21之间通过弱化工艺设置弱化区域W，以便于安全气囊门A1翻转打开形成开口O以利于气囊G从开口O展开。
实施例9
饰件通过如下步骤制造：
(1)提供安全气囊门铰链C1；
(2)将安全气囊门铰链C1的两个相对的固定段C12、C13分别置于模具中成型气囊框A22以及成型加强门A11的部分；
(3)向模具中注射塑料融料，至少部分安全气囊门铰链C1被塑料融料覆盖；
(4)待塑料融料冷却后取出，得到气囊框A22和加强门A11，且铰链C1的两个相对的固定段C12、C13分别嵌于气囊框A22以及加强门A11中，从而加强门A11与气囊框A22通过铰链C1的铰链段C11连接；
(5)在骨架A21和安全气囊门基板A12的一体成型件上远离气囊框A22的方向复合发泡层和表皮层，形成承载部件发泡层A23、承载部件表皮层A24以及安全气囊门发泡层A13、安全气囊门表皮层A14；
(6)提供骨架A21和安全气囊门基板A12的一体成型件；在安全气囊门基板A12和骨架A21之间通过弱化工艺设置弱化区域W，以便于所述安全气囊门A1翻转打开形成开口O以利于气囊G从开口O展开；
(7)通过焊接连接气囊框A22和骨架A21，以及连接加强门A11和安全气囊门基板A12。
本领域技术人员会清楚，可以进行本公开的许多修改和变化而不背离其精神和范围。本文所述的具体实施方案仅通过示例的方式提供，并不意味着以任何方式限制。本公开的真正范围和精神通过所附权利要求书示出，说明书和实施例仅是示例性的。

Claims (30)

  1. 一种安全气囊门铰链，其用于与安全气囊门和包围所述安全气囊门的承载部件连接，其特征在于，所述安全气囊门铰链为双层结构，具有第一纺织层(1)和第二纺织层(2)，所述第一纺织层(1)和第二纺织层(2)通过多个连接部件(3)连接。
  2. 根据权利要求1所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)均为各自连续的纺织层。
  3. 根据权利要求1所述的安全气囊门铰链，其特征在于，所述第二纺织层(2)为所述第一纺织层(1)在边缘处折叠形成。
  4. 根据权利要求1所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)中其中一层为连续的纺织层，另一层为包括至少一个间隔区域的纺织层。
  5. 根据权利要求1所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)均为包括至少一个间隔区域的纺织层。
  6. 根据权利要求4-5之一所述的安全气囊门铰链，其特征在于，所述间隔区域由所述连接部件(3)限定。
  7. 根据权利要求1-6之一所述的安全气囊门铰链，其特征在于，在纬向上两个相邻的所述连接部件(3)之间的纬向间距L为5-200mm。
  8. 根据权利要求1-7之一所述的安全气囊门铰链，其特征在于，在纬向上两个相邻的所述连接部件(3)之间的所述纬向间距L为10-100mm。
  9. 根据权利要求1-8之一所述的安全气囊门铰链，其特征在于，在纬向上两个相邻的所述连接部件(3)之间的所述纬向间距L为20-50mm。
  10. 根据权利要求1-7之一所述的安全气囊门铰链，其特征在于，在纬向上两个相 邻的所述连接部件(3)之间的所述纬向间距L为5-70mm。
  11. 根据权利要求1-7之一所述的安全气囊门铰链，其特征在于，在纬向上两个相邻的所述连接部件(3)之间的所述纬向间距L为70-200mm。
  12. 根据权利要求1-11之一所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)与所述第二纺织层(2)之间的间隙为2mm以下。
  13. 根据权利要求1-12之一所述的安全气囊门铰链，其特征在于，所述连接部件(3)为线、线圈、胶或其组合。
  14. 根据权利要求1-13之一所述的安全气囊门铰链，其特征在于，第一纺织层(1)和/或第二纺织层(2)中分别包含线圈，通过将包含在第一纺织层(1)的线圈嵌入第二纺织层(2)和/或将包含在第二纺织层(2)的线圈嵌入第一纺织层(1)实现连接。
  15. 根据权利要求1-14之一所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)的横向密度分别为5-25线圈数/25mm；和/或纵向密度分别为5-25线圈数/25mm。
  16. 根据权利要求1-15之一所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)的克重分别为100-2000gsm。
  17. 根据权利要求1-16之一所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)分别为针织物。
  18. 根据权利要求1-17之一所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)分别为纬编或经编织物。
  19. 根据权利要求1-18之一所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)有相同的延伸率和拉伸强力。
  20. 根据权利要求3-19之一所述的安全气囊门铰链，其特征在于，所述间隔区域的 纬向间距之和L1与所述铰链的纬向总长D的比例L1/D为0.8以下，优选0.35-0.8。
  21. 根据权利要求1-20之一所述的安全气囊门铰链，其特征在于，在经向上两个相邻的所述连接部件(3)之间的经向间距L’为150mm以下，优选为2-150mm。
  22. 根据权利要求1-21之一所述的安全气囊门铰链，其特征在于，所述第一纺织层(1)和所述第二纺织层(2)包含纤维材料。
  23. 根据权利要求22所述的安全气囊门铰链，其特征在于，所述纤维材料包含合成纤维、天然纤维或其组合，优选包含聚乙烯、聚丙烯、再生纤维素纤维、聚酰胺、碳纤维、聚丙烯腈、聚酯、纤维素、棉、剑麻、蕉麻、木棉、苎麻、亚麻、大麻、黄麻、动物毛、蚕丝或其组合。
  24. 根据权利要求13-23之一所述的安全气囊门铰链，其特征在于，所述线圈被配置为拉伸或伸长以在安全气囊展开时提供所述气囊门铰链的拉伸。
  25. 根据权利要求1所述的安全气囊门铰链，其特征在于，所述安全气囊门铰链与所述安全气囊门和所述承载部件通过嵌件注塑工艺连接。
  26. 一种用于汽车内部的饰件，包括：
    安全气囊门，
    包围所述安全气囊门的承载部件，和
    安全气囊门铰链，
    其中所述安全气囊门铰链用于与安全气囊门和所述承载部件的连接，
    所述安全气囊门铰链为根据权利要求1-25之一所述的安全气囊门铰链。
  27. 根据权利要求26所述的饰件，其中所述承载部件包括：
    骨架和气囊框，
    所述骨架限定开口，用于气囊通过所述开口展开，
    所述骨架与所述气囊框一体成型，
    所述安全气囊门被配置为覆盖所述开口，并且
    所述安全气囊门铰链用于与所述安全气囊门和所述骨架连接。
  28. 根据权利要求26所述的饰件，其中所述承载部件包括：
    骨架和气囊框，
    所述骨架限定开口，用于气囊通过所述开口展开，
    所述骨架与所述气囊框连接，
    所述安全气囊门被配置为覆盖所述开口，并且
    所述安全气囊门铰链用于与所述安全气囊门和所述气囊框连接。
  29. 一种制造权利要求27所述的饰件的方法，所述安全气囊门包括安全气囊门基板，所述方法包括：
    (1)提供所述安全气囊门铰链；
    (2)将所述安全气囊门铰链置于成型所述气囊框与所述骨架、所述安全气囊门基板的模具中；
    (3)向所述模具中注射塑料融料，至少部分所述安全气囊门铰链被塑料融料覆盖；
    (4)待塑料融料冷却后取出，得到所述气囊框和所述骨架、安全气囊门基板一体成型，且所述安全气囊门铰链被嵌于所述骨架和安全气囊门基板中；
    (5)在所述安全气囊门基板和所述骨架之间通过弱化工艺设置弱化区域，以便于所述安全气囊门翻转打开形成所述开口以利于气囊从所述开口展开。
  30. 一种制造权利要求28所述的饰件的方法，所述安全气囊门包括加强门和安全气囊门基板，所述方法包括：
    (1)提供所述安全气囊门铰链；
    (2)将所述安全气囊门铰链置于成型所述气囊框与所述加强门的模具中；
    (3)向所述模具中注射塑料融料，至少部分所述安全气囊门铰链被塑料融料覆盖；
    (4)待塑料融料冷却后取出，得到所述气囊框和所述加强门，且至少部分所述安全气囊门铰链被嵌于所述气囊框和所述加强门中以实现所述加强门与所述气囊框的连接；
    (5)提供所述骨架，在所述安全气囊门基板和所述骨架之间通过弱化工艺设置弱化区域，以便于所述安全气囊门翻转打开形成所述开口以利于气囊从所述开口展开；
    (6)通过焊接连接所述气囊框和所述骨架以及连接所述加强门和安全气囊门基板。
PCT/CN2019/105927 2018-09-14 2019-09-16 一种安全气囊门铰链、包含其的用于汽车内部的饰件及饰件的制造方法 WO2020052684A1 (zh)

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